This book is about developing projects using the sensor-modules with Arduino Uno, Raspberry Pi and ESP32 microcontroller development systems. More than 40 different sensors types are used in various projects in the book. The book explains in simple terms and with tested and fully working example projects, how to use the sensors in your project. The projects provided in the book include the following: Changing LED brightnessRGB LEDsCreating rainbow coloursMagic wandSilent door alarmDark sensor with relaySecret keyMagic light cupDecoding commercial IR handsetsControlling TV channels with IT sensorsTarget shooting detectorShock time duration measurementUltrasonic reverse parkingToggle lights by clapping handsPlaying melodyMeasuring magnetic field strengthJoystick musical instrumentLine trackingDisplaying temperatureTemperature ON/OFF controlMobile phone-based Wi-Fi projectsMobile phone-based Bluetooth projectsSending data to the Cloud The projects have been organized with increasing levels of difficulty. Readers are encouraged to tackle the projects in the order given. A specially prepared sensor kit is available from Elektor. With the help of this hardware, it should be easy and fun to build the projects in this book.

Prof. Dr. Dogan Ibrahim has a BSc. In Electronic Engineering, an MSc. in Automatic Control Engineering, and a Ph.D. in Digital Signal Processing. He worked in many industrial organisations before returning to academia. Prof. Ibrahim is the author of over 60 technical books and over 200 technical articles on microcontrollers, microprocessors, and related fields. He is a Chartered Electrical Engineer and a Fellow of the Institution of Engineering Technology.